Defoaming device

Abstract

The utility model discloses a defoaming device which is characterized in that an air injection device is arranged in a cavity which contains liquid and generates bubbles, and the air injection device at least can inject air to the bubbles in the liquid along the circumference of two positions of a bubble moving path in the liquid. The air injection device comprises at least two ventilation pipelines, the ventilation pipelines are communicated through connecting pipes, and the ventilation pipelines are arranged at different positions along the bubble moving path; at least one air injection hole is formed in each ventilation pipeline, and at least one air inlet is formed in the connecting pipe and / or any ventilation pipeline. The air injection device injects high-pressure air to pierce bubbles, defoaming is achieved, the heating time of processed liquid is not affected, a defoaming agent does not need to be added, and the quality of the processed liquid is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of production and processing of traditional Chinese medicine liquid, in particular to a defoaming device. Background Art

[0002] Traditional Chinese medicine liquid is usually concentrated in an open kettle. During heating, the heating state needs to be adjusted according to the amount of bubbles generated by the liquid, or defoaming agents such as dextrin are added to the liquid to reduce the bubbles generated during the concentration process and avoid pot overflow (the phenomenon of the liquid boiling continuously and the liquid level rising and overflowing when heated).

[0003] The above methods take a long time to concentrate the same solution or add other substances to the traditional Chinese medicine solution to change the composition of the traditional Chinese medicine solution, thereby posing a potential risk of changing the quality of the traditional Chinese medicine solution. Utility Model Content

[0004] The purpose of the utility model is to provide a defoaming device that uses an air jet to eliminate bubbles generated by liquid heating, so as to solve the technical problems in the prior art of lowering the heating temperature to reduce bubbles, resulting in prolonged heating time, and the technical problem of adding a defoaming agent, resulting in the inability to guarantee the quality of the liquid.

[0005] In order to solve the above technical problems, the present invention specifically provides the following technical solutions: a defoaming device, in which an air jet device is arranged in a cavity containing liquid and generating bubbles, and the air jet device can at least spray the bubbles in the liquid at two positions along the bubble movement path in the liquid.

[0006] Furthermore, the cavity is the cavity of a traditional Chinese medicine concentration device.

[0007] Furthermore, the air injection device includes at least two ventilation pipes, each of which is connected by a connecting pipe, and the ventilation pipes are arranged at different positions along the bubble movement path;

[0008] At least one air injection hole is provided on the ventilation pipe, and at least one air inlet is provided on the connecting pipe and / or any one of the ventilation pipes.

[0009] Furthermore, the ventilation duct is any one of an annular ventilation duct, a square ventilation duct, and a strip ventilation duct, or a combination of several of them.

[0010] Furthermore, the jet directions of the jet holes are the same or different, and the jet directions are horizontal or inclined toward the direction of the bubble source.

[0011] Furthermore, a plurality of air injection holes are evenly distributed on the ventilation pipe.

[0012] Furthermore, the gas from the gas jet hole is ejected in a continuous and / or intermittent manner;

[0013] The ejection pressure of the gas in the jet hole is 0.04MPa-0.06MPa.

[0014] Furthermore, the air inlet is connected to an external air supply device through a straight air pipe joint.

[0015] Furthermore, a fixing piece is provided on any one or more of the ventilation ducts.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The defoaming device provided by the utility model uses an air jet device to spray high-pressure gas to puncture bubbles to achieve defoaming. A physical method is used to defoam, which does not affect the heating time of the processed liquid and does not require the addition of a defoaming agent, thereby ensuring the quality of the processed liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0019] Figure 1 Schematic diagram of the structure of the jet device in this application;

[0020] Figure 2 for Figure 1 A schematic structural diagram of the jet device shown below;

[0021] Figure 3 for Figure 1 A schematic structural diagram of the jet device located above is shown;

[0022] Figure 4 It is a structural schematic diagram of one embodiment of the air jet hole in the air jet device;

[0023] Figure 5 A schematic structural diagram of another embodiment of the jet hole in the jet device

[0024] Figure 6 This is a schematic diagram of the structure of the defoaming concentration equipment in this application;

[0025] Figure 7 for Figure 6 A schematic structural diagram of another embodiment of the jetting device shown;

[0026] Figure 8 This is a schematic structural diagram of another embodiment of the defoaming concentrating device in the present application.

[0027] The numbers in the figure represent the following: 1-cavity, 2-injection device, 21-ventilation pipe, 22-injection hole, 23-air inlet, 24-connecting pipe, 25-connector, 26-support member. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] The utility model provides a defoaming method, which sprays multiple streams of high-pressure gas along the rising path of bubbles generated by liquid boiling, toward the rising path of the bubbles, so as to puncture the bubbles.

[0030] The following steps are involved:

[0031] Step 001, defoaming the lower layer;

[0032] During the rising process, the bubbles are first punctured and eliminated by multiple streams of high-pressure gas, and the bubbles that are not eliminated continue to move upward;

[0033] Step 002, defoaming the upper layer:

[0034] The bubbles that are not eliminated in step 001 are punctured and eliminated again by multiple streams of high-pressure gas during the continued upward process; the bubbles are completely eliminated at this position or are not completely eliminated but no longer move upward.

[0035] There is no specific restriction on the angle and amount of high-pressure gas ejected. In principle, multiple streams of high-pressure gas are ejected, and high-pressure gases at various ejection angles are combined to increase the coverage area of the ejected high-pressure gas and enhance the defoaming effect.

[0036] In order to prevent the ejected gas from affecting the liquid surface and generating more bubbles, in step 001, it is preferred that multiple streams of high-pressure gas are used to puncture and eliminate the bubbles in a horizontal direction.

[0037] At the same time, in step 001, the bubbles around the rising path of the bubbles are punctured and eliminated first, and most of the remaining bubbles are located in the middle position; therefore, in step 002, it is preferred that multiple streams of high-pressure gas puncture and eliminate the bubbles in an inclined downward direction.

[0038] In order to realize the above-mentioned defoaming method, the present invention provides a specific embodiment of a defoaming device, in which an air jet device 2 is provided in a cavity 1 for heating liquid, and the cavity is an open structure.

[0039] The air-jet device 2 is capable of jetting air toward the bubbles in the liquid at at least two locations along the movement path of the bubbles in the liquid.

[0040] The air injection device 2 includes at least two ventilation pipes 21, each of which is connected by a connecting pipe 24, and the ventilation pipes 21 are arranged at different positions along the bubble movement path;

[0041] The ventilation duct 21 is a closed loop structure formed by connecting end to end; it can be any one of an annular ventilation duct, a square ventilation duct, and a strip ventilation duct, or a combination of several of them.

[0042] The ventilation pipe 21 is provided with a plurality of air injection holes 22; the connecting pipe and / or any ventilation pipe 21 is provided with at least one air inlet 23, and the air inlet 23 is provided with a straight air pipe connector 25 for connecting to an external air supply device.

[0043] Among them, multiple ventilation pipes 21 can be provided with high-pressure gas by one gas supply device, or multiple ventilation pipes 21 can be provided with high-pressure gas by multiple gas supply devices. This does not affect the implementation of this technical solution and is therefore not limited.

[0044] The position of the air injection hole 22 is not specifically limited.

[0045] Since the air jet hole 22 is mainly used to puncture the bubbles below it and puncture the bubbles when the bubbles rise through the ventilation pipe 21, the jet direction of the air jet hole 22 can be preferably set horizontally and / or tilted downward.

[0046] Since the defoaming effect is better when the number of ventilation pipes 21 is greater, a plurality of ventilation pipes 21 are preferably used in this embodiment.

[0047] According to actual production conditions, considering that the more air jet holes there are, the more air supply devices are needed or a single air supply device is needed to provide high-pressure gas. In order to achieve balance, a specific embodiment of the air jet device is provided, such as Figure 1-Figure 3 As shown:

[0048] It includes two ventilation pipes 21, which are annular structures. The air inlet 23 is set on the ventilation pipe 21 of the jet device 2 located above; adjacent ventilation pipes 21 are connected by connecting pipes 24; each ventilation pipe 21 is provided with 15-20 jet holes.

[0049] The jet holes 22 of the upper jet device 2 have a jetting direction horizontally set toward the bubble moving path; the jet holes 22 of the upper jet device 2 have a jetting direction tilted downward toward the bubble moving path.

[0050] Based on this embodiment, the closed loop structure formed by the ventilation pipe 21 can be a regular polygon or other closed loop shapes.

[0051] In this embodiment, the air jet holes 22 of each ventilation duct 21 may include multiple groups of air jet holes 22 with different injection directions; in each ventilation duct 21, the air jet holes 22 of each group with the same injection direction are arranged at equal intervals.

[0052] Regarding the specific position of the blowing hole 22 in the ventilation pipe 21, there are the following embodiments.

[0053] Example 1, as Figure 4 As shown:

[0054] In a single ventilation duct 21, multiple groups of jet holes are provided on the vertical section of the ventilation duct 21 at the location of the jet holes 22; in this embodiment, 5 groups are preferably provided, with the horizontal plane as the 0° line, wherein 1 group is provided at the 0° angle position, 1 group is provided at the -45° angle position, 1 group is provided at the -90° angle position, 1 group is provided at the -135° angle position, and 1 group is provided at the -180° angle position; the range covered by the jet holes is expanded to improve the defoaming efficiency.

[0055] Example 2, as Figure 5 As shown:

[0056] In a single ventilation duct 21, two groups of air jet holes 22 are provided along the length of the ventilation duct, one group of which is horizontally arranged and the other group of which is inclined downwardly arranged. The two groups of air jet holes 22 are alternately arranged.

[0057] All the air jet holes 22 are arranged at equal intervals, and the horizontally arranged air jet holes 22 and the air jet holes 22 arranged obliquely downward are also arranged at equal intervals, thereby expanding the coverage of the ejected high-pressure gas and improving the defoaming efficiency.

[0058] The utility model also provides a defoaming heating device, including a cavity 1 for heating liquid, which is an open structure, and the above-mentioned jet device is provided inside the cavity 1; the jet device is located above the maximum liquid level surface of the cavity 1; the jet hole 22 of the jet device is arranged toward the rising path of bubbles generated when the liquid is heated.

[0059] The jet device 2 includes at least two ventilation pipes 21, which are a closed loop structure connected end to end; a plurality of jet holes 22 are provided on the ventilation pipe 21, and the jet holes 22 are arranged toward the rising path of bubbles generated when the liquid is heated; the ventilation pipe 21 is also provided with an air inlet 23, which extends to the outside of the cavity 1 for connecting to an external air supply device.

[0060] In this embodiment, the gas from the gas injection hole 22 is ejected in a continuous and / or intermittent manner.

[0061] This application provides a specific embodiment of the cavity internal jetting device, such as Figure 6 As shown;

[0062] Two groups of jet devices 2 are provided, and the two groups of jet devices 2 are arranged from top to bottom and parallel to the horizontal plane; there is one air inlet 23, which is arranged on the ventilation pipe 21 of one of the jet devices 2; adjacent ventilation pipes 21 are connected by connecting pipes 24; the geometric center point of the ventilation pipe 21 coincides with the central axis of the cavity 1, so that the entire jet device 2 is located in the center position of the cavity.

[0063] Among them, the jet holes 22 of the jet device 2 located at the upper layer are set obliquely downward, and the jet holes 22 of the jet device 2 located at the lower layer are set horizontally. When the bubbles pass through the lower jet device, they are punctured and eliminated by the horizontally ejected compressed air. The bubbles that are not eliminated continue to move upward and are blocked and punctured by the compressed air ejected obliquely downward when approaching the upper jet device. The bubbles are completely eliminated at this position or are not completely eliminated but no longer continue to move upward, avoiding the occurrence of pot-popping.

[0064] In order to realize the installation and fixation of the jetting device inside the cavity, an embodiment is provided, such as Figure 6 As shown:

[0065] In principle, the ventilation pipe 21 is arranged close to the inner wall of the cavity 1 so that the rising path of the bubbles is wrapped in the ventilation pipe 21 with a closed loop structure.

[0066] In this embodiment, the cavity for heating the liquid is a traditional Chinese medicine concentration device, which is an open concentration kettle, and its inner cavity is a cylindrical structure. Therefore, the ventilation pipe 21 is connected end to end to form a circular structure, and the edge of the ventilation pipe 21 is arranged close to the inner wall of the cavity 1; a straight air pipe joint 25 for connecting the air supply equipment is provided at the air inlet 23; the straight air pipe joint 25 is a rigid structure, which passes through the side wall of the cavity 1; at least one support member 26 is provided on the side wall of the ventilation pipe 21 of the jet device 2 with the air inlet 23, and the support member 26 is used to be fixed to the cavity 1; the straight air pipe joint 25 and the support member 26 are located on the same horizontal plane and are arranged at equal intervals from each other.

[0067] In this embodiment, the outer side of the ventilation pipe 21 is arranged close to the inner wall of the cavity 1; one support member 26 is provided, and the support member 26 is symmetrically arranged relative to the straight air pipe connector 25.

[0068] In this embodiment, before the Chinese medicine liquid is concentrated, the steam valve is opened to preheat the concentration equipment in advance, and then the extracted Chinese medicine liquid is input into the concentration equipment, and at the same time, purified compressed air is blown into the bottom of the concentration equipment and the annular device (the compressed air pressure at the bottom is about 0.3MPa, and the compressed air pressure used by the jet device is about 0.04MPa-0.06MPa). The Chinese medicine liquid is continuously churned under the action of the compressed air at the bottom, and the churning Chinese medicine liquid is also affected by the heating to produce a large number of bubbles, especially the saponin Chinese medicine liquid. The bubbles generated are large and expand rapidly and move upward. During the whole process, the cover on the top of the concentration equipment is in an open state.

[0069] In order to improve the coverage of the jet hole, an embodiment is provided, such as Figure 7 As shown:

[0070] In a single jet device 2, multiple jet holes are provided at the position corresponding to a single jet hole 22, including horizontal setting, downward tilting and vertical downward setting, wherein the tilt angle can include multiple angles at the same time to expand the coverage of the ejected high-pressure gas.

[0071] Figure 4 and Figure 8 The present application also provides another embodiment of the jet device inside the cavity, wherein the jet device 2 is provided with a group, which is horizontally arranged at the top of the cavity 1; the distance between the ventilation pipe 21 and the central axis of the cavity is consistent with the distance between the ventilation pipe 21 and the inner wall of the cavity.

[0072] A plurality of air jet holes 22 are provided at the position corresponding to a single air jet hole 22, as shown in FIG. Figure 4 As shown; with the horizontal plane as the 0° line, 1 group is set at the 0° angle position, 1 group is set at the -45° angle position, 1 group is set at the -90° angle position, 1 group is set at the -135° angle position, and 1 group is set at the -180° angle position.

[0073] Compared with the side of the ventilation pipe 21 being installed on the inner wall of the concentrator 1, this embodiment avoids the problem that the air bubbles in the central area cannot be effectively punctured due to the air jet hole 22 being too far away from the center point of the concentrator 1.

[0074] When the bubble moves upward and approaches the top of the cavity, it passes through the injection path of the compressed air ejected from the jet device and is punctured; the injection path of the compressed air includes multiple angles, which expands the coverage of the compressed air, thereby preventing the bubble from overflowing from the concentration device and preventing the pot from fluttering.

[0075] The above embodiments are merely exemplary embodiments of the present application and are not intended to limit the scope of the present application. The scope of protection of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and scope of protection of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present application.

Claims

1. A defoaming device, characterized in that: An air jet device (2) is provided in a cavity (1) containing liquid and generating bubbles, wherein the air jet device (2) is capable of jetting air toward the bubbles in the liquid at least at two locations along a movement path of the bubbles in the liquid; The jet devices (2) are provided in two groups, and the two groups of jet devices (2) are arranged from top to bottom and are arranged parallel to the horizontal plane; wherein, the jet holes (22) of the jet devices (2) located at the top are arranged obliquely downward, and the jet holes (22) of the jet devices (2) located at the bottom are arranged horizontally, and a large part of the bubbles are punctured and eliminated by the compressed air ejected horizontally when the bubbles pass through the lower jet devices, and the bubbles that are not eliminated continue to move upward and are blocked and punctured by the compressed air ejected obliquely downward when they approach the upper jet devices; The distance between the ventilation duct (21) of the jet device (2) and the central axis of the cavity is consistent with the distance between the ventilation duct (21) and the inner wall of the cavity (1); A plurality of jet holes (22) are provided at the positions corresponding to the single jet hole (22), specifically with the horizontal plane as the 0° line, wherein one group is provided at the 0° angle position, one group is provided at the -45° angle position, one group is provided at the -90° angle position, one group is provided at the -135° angle position, and one group is provided at the -180° angle position.

2. A defoaming device according to claim 1, characterized in that: The cavity (1) is the cavity of a traditional Chinese medicine concentration device.

3. A defoaming device according to claim 1 or 2, characterized in that: The air jet device (2) comprises at least two ventilation pipes (21), each of the ventilation pipes (21) is connected via a connecting pipe (24), and the ventilation pipes (21) are arranged at different positions along the bubble movement path; At least one air injection hole (22) is provided on the ventilation pipe (21), and at least one air inlet (23) is provided on the connecting pipe (24) and / or any one of the ventilation pipes (21).

4. A defoaming device according to claim 3, characterized in that: The ventilation pipe (21) is any one of an annular ventilation pipe, a square ventilation pipe, and a strip ventilation pipe, or a combination of several of them.

5. A defoaming device according to claim 3, characterized in that: The jet directions of the jet holes (22) are the same or different, and the jet directions are horizontal or inclined toward the direction of the bubble source.

6. A defoaming device according to claim 3, characterized in that: A plurality of air injection holes (22) are evenly distributed on the ventilation pipe (21).

7. A defoaming device according to claim 3, characterized in that: The gas in the gas jet hole (22) is ejected in a continuous and / or intermittent manner; The ejection pressure of the gas in the jet hole (22) is 0.04 MPa-0.06 MPa.

8. A defoaming device according to claim 3, characterized in that: The air inlet (23) is connected to an external air supply device via a straight air pipe connector (25).

9. A defoaming device according to claim 3, characterized in that: A fixing member (26) is provided on any one or more of the ventilation pipes (21).

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